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The electrical conductivity of pure germ...

The electrical conductivity of pure germanium can be increased by

A

increassing the temperature

B

doping acceptor impurities

C

doping donor impurities

D

irradiating ultraviolet light on it.

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The correct Answer is:
A, B, C, D
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RESONANCE-SEMICONDUCTORS-Exercise
  1. The mobility of free electrons is greater then that of free holes beca...

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  2. Let n(p) and n(e), be the numbers of holes and condution electrons in ...

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  3. The electrical conductivity of pure germanium can be increased by

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  4. n-type semiconductor is

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  5. If N(P) and N(e) be the numbers of holes and conduction electrons in a...

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  6. A semiconductor is doped with a donor impurity

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  7. A P-type semiconductor has acceptor levels 57 meV above the valence ba...

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  8. Which of the following energy band diagrams shows the N-type semicondu...

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  9. A P-type sillicon semiconductor is made by adding one atom of indium p...

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  10. When N-type of semiconductor is heated

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  11. GaAs is-

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  12. What will be conductance of pure sillicon crystal at 300 K temp? if el...

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  13. Forbidden energy gap of Ge is 0.75eV, maximum wave length of incident ...

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  14. Mobility of electron in N-type Ge is 5000 cm^(2)//"volt" sec and condu...

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  15. The intrinsic carrier density in germanium crystal at 300 K is 2.5xx10...

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  16. Pure Si at 300 K has equal electron (n(e)) and hole (n(h)) concentrati...

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  17. The length of a germanium rod is 0.58 cm and its area of cross-section...

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  18. The contribution in the total current flowing through a semiconductor ...

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  19. The P-N junction is-

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  20. Diffusion current in a p-n junction is greater than the drift current ...

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